Good luck with trapping, at least you will feel like there is a chance of keeping them at bay.
I am fortunate to have never encountered wireworms and do not know if no dig would make any difference, compared with ploughing or rotovating. I suspect not but hope I am wrong!
Grow bags sound worth a try, keep an eye out in case wireworm manage to slither up the sides (!) or possibly chomp through the bottoms. Do keep us posted and I hope you grow some lovely vegetables.